Published April 1, 2009
| Version v1
Journal article
Connected parts of decuplet electromagnetic properties
Creators
- 1. Maryland Center for Fundamental Physics, Department of Physics, University of Maryland, College Park, Maryland 20742-4111 (United States)
Description
We determine the electromagnetic properties of decuplet resonances using chiral perturbation theory at next-to-leading order. Utilizing a partially quenched charge matrix, we isolate and remove the quark disconnected contractions. This allows us to compare the physical meson loop contributions to the connected contributions, of which the latter are currently calculated using lattice QCD. Finally we determine linear combinations of decuplet resonance and hyperon electromagnetic properties that are exactly independent of disconnected contractions in the isospin limit.
Additional details
Identifiers
- DOI
- 10.1103/PhysRevD.79.077501;
- arXiv
- arXiv:0903.0359v2;
Publishing Information
- Journal Title
- Physical Review. D, Particles Fields
- Journal Volume
- 79
- Journal Issue
- 7
- Journal Page Range
- p. 077501-077501.4
- ISSN
- 0556-2821
- CODEN
- PRVDAQ
INIS
- Country of Publication
- United States
- Country of Input or Organization
- International Atomic Energy Agency (IAEA)
- INIS RN
- 41052163
- Subject category
- S72: PHYSICS OF ELEMENTARY PARTICLES AND FIELDS;
- Descriptors DEI
- CHIRALITY; COMPARATIVE EVALUATIONS; CONTRACTION; HYPERONS; ISOSPIN; MESONS; PERTURBATION THEORY; QUANTUM CHROMODYNAMICS; QUARKS; RESONANCE
- Descriptors DEC
- BARYONS; BOSONS; ELEMENTARY PARTICLES; EVALUATION; FERMIONS; FIELD THEORIES; HADRONS; PARTICLE PROPERTIES; QUANTUM FIELD THEORY; STRANGE PARTICLES
Optional Information
- Notes
- (c) 2009 The American Physical Society